Hair brush



FIG. 1 is a front and top perspective view of a hair brush, showing mynew design;

FIG. 2 is a rear and bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is a front and top perspective view of the hair brush with coverof FIG. 1.

The broken lines depict portions of the hair brush in which the designis embodied that form no part of the claimed design.

CLAIM The ornamental design for a hair brush, as shown and described.